The scheme of operation of a manually operated gearbox
And – a gear wheel of a drive of cardan shafts; T - speedometer drive; I - conjugated pair of first gear; II - conjugated pair of the second gear; III - conjugated pair of third gear; IV - conjugate pair of the fourth gear; V - conjugated pair of fifth gear; R – conjugated pair of reverse stroke; 1 - engine; 2 - clutch; 3 - drive shaft; 4 - manual transmission; 5 - driven shaft; 6 - conjugated pair of differential
Gearbox disassembly procedure 02K
I - disassembly of the cover of the crankcase of the gearbox and fifth gear;
II - disassembly of the gearbox housing and shift shaft;
III - disassembly of the input shaft, driven shaft, differential and switching forks
Transmission disassembly procedure 02J
I - disassembly of the cover of the crankcase of the gearbox and fifth gear;
II - disassembly of the gearbox housing and shift shaft;
III - disassembly of the input shaft, driven shaft, differential and switching forks
Gearbox 5-speed
Gearboxes refer to the drive mechanism. The gearbox also includes a transfer case with a differential. The gearbox housing is formed from three die-cast aluminum alloy parts: the gearbox housing, the clutch housing and the transmission cover.
Mechanically controlled gearboxes have five gears forward and one reverse. There are two shafts in boxes. All forward gears are equipped with blocking synchronization; helical gears work in constant mesh. The forward gears are controlled by a flip-over cage of synchronous clutches controlled by the inclusion forks through the shift mechanism. Reverse spur gear is engaged by an intermediate gear that changes direction of rotation (see fig. The scheme of operation of a manually operated gearbox).
The transfer box is located in the remote part of the gearbox housing. Its driven gear, also helical, is located in the cast-iron housing of the bevel differential. Cardan drive shafts of unequal length are inserted into the holes of the planetary gears of the differential.
The following figures show the procedure for disassembling gearboxes 02K (see fig. Gearbox disassembly procedure 02K) and 02J (see fig. Transmission disassembly procedure 02J). A part of the gearbox housing is also an element for installing the drive unit on the left side (in the direction of travel) and, in addition, switching mechanisms placed on the gearbox. In the axis of the drive shaft of the gearbox 02K there is a hole through which the clutch disengagement rod passes.